system/freebsd-src
system/freebsd-src
1
0
Fork 0
mirror of https://github.com/freebsd/freebsd-src synced 2024-10-19 06:44:31 +00:00
Code Issues Packages Projects Releases Wiki Activity

Match namespace cleanup changes in ACPI CA 20020217 update.

Browse source 
Use ACPI_SUCCESS/ACPI_FAILURE consistently.
The AcpiGetInto* interfaces are obsoleted by ACPI_ALLOCATE_BUFFER.

Kill off the timeouts that used to read _BIF and _BST.  These are
invoked when the battery is actually read.  timeout() is dangerous
in combination with ACPI, as the interpreter can block.

This driver still needs more work.
This commit is contained in:
Mike Smith 2002-02-23 05:24:14 +00:00
parent b53f277167
commit 595a08978c
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=91121
1 changed files with 15 additions and 34 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

49
sys/dev/acpica/acpi_cmbat.c
View file

@ -53,7 +53,7 @@ MALLOC_DEFINE(M_ACPICMBAT, "acpicmbat", "ACPI control method battery data");
* Hooks for the ACPI CA debugging infrastructure
*/
#define _COMPONENT ACPI_BATTERY
MODULE_NAME("BATTERY")
ACPI_MODULE_NAME("BATTERY")
#define ACPI_BATTERY_BST_CHANGE 0x80
#define ACPI_BATTERY_BIF_CHANGE 0x81
@ -104,8 +104,6 @@ struct acpi_cmbat_softc {
struct acpi_bif bif;
struct acpi_bst bst;
ACPI_BUFFER bif_buffer;
ACPI_BUFFER bst_buffer;
struct timespec bif_lastupdated;
struct timespec bst_lastupdated;
int bif_updating;
@ -115,8 +113,6 @@ struct acpi_cmbat_softc {
int cap;
int min;
int full_charge_time;
struct callout_handle cmbat_timeout;
};
static struct timespec acpi_cmbat_info_lastupdated;
@ -124,7 +120,6 @@ static struct timespec acpi_cmbat_info_lastupdated;
/* XXX: devclass_get_maxunit() don't give us the current allocated units... */
static int acpi_cmbat_units = 0;
static void acpi_cmbat_timeout(void *);
static int acpi_cmbat_info_expired(struct timespec *);
static void acpi_cmbat_info_updated(struct timespec *);
static void acpi_cmbat_get_bst(void *);
@ -136,22 +131,6 @@ static int acpi_cmbat_resume(device_t);
static int acpi_cmbat_ioctl(u_long, caddr_t, void *);
static int acpi_cmbat_get_total_battinfo(struct acpi_battinfo *);
/*
* Poll the battery info.
*/
static void
acpi_cmbat_timeout(void *context)
{
device_t dev;
struct acpi_cmbat_softc *sc;
dev = (device_t)context;
sc = device_get_softc(dev);
AcpiOsQueueForExecution(OSD_PRIORITY_LO, acpi_cmbat_get_bif, dev);
sc->cmbat_timeout = timeout(acpi_cmbat_timeout, dev, CMBAT_POLLRATE);
}
static __inline int
acpi_cmbat_info_expired(struct timespec *lastupdated)
{
@ -188,10 +167,12 @@ acpi_cmbat_get_bst(void *context)
ACPI_STATUS as;
ACPI_OBJECT *res, *tmp;
ACPI_HANDLE h;
ACPI_BUFFER bst_buffer;
dev = context;
sc = device_get_softc(dev);
h = acpi_get_handle(dev);
bst_buffer.Pointer = NULL;
if (!acpi_cmbat_info_expired(&sc->bst_lastupdated)) {
return;
@ -202,16 +183,15 @@ acpi_cmbat_get_bst(void *context)
}
sc->bst_updating = 1;
untimeout(acpi_cmbat_timeout, (caddr_t)dev, sc->cmbat_timeout);
if ((as = acpi_EvaluateIntoBuffer(h, "_BST", NULL, &sc->bst_buffer)) != AE_OK) {
bst_buffer.Length = ACPI_ALLOCATE_BUFFER;
if (ACPI_FAILURE(as = AcpiEvaluateObject(h, "_BST", NULL, &bst_buffer))) {
ACPI_VPRINT(dev, acpi_device_get_parent_softc(dev),
"error fetching current battery status -- %s\n",
AcpiFormatException(as));
goto end;
}
res = (ACPI_OBJECT *)sc->bst_buffer.Pointer;
res = (ACPI_OBJECT *)bst_buffer.Pointer;
if ((res->Type != ACPI_TYPE_PACKAGE) || (res->Package.Count != 4)) {
ACPI_VPRINT(dev, acpi_device_get_parent_softc(dev),
@ -225,8 +205,9 @@ acpi_cmbat_get_bst(void *context)
PKG_GETINT(res, tmp, 3, sc->bst.volt, end);
acpi_cmbat_info_updated(&sc->bst_lastupdated);
end:
if (bst_buffer.Pointer != NULL)
AcpiOsFree(bst_buffer.Pointer);
sc->bst_updating = 0;
sc->cmbat_timeout = timeout(acpi_cmbat_timeout, dev, CMBAT_POLLRATE);
}
static void
@ -237,10 +218,12 @@ acpi_cmbat_get_bif(void *context)
ACPI_STATUS as;
ACPI_OBJECT *res, *tmp;
ACPI_HANDLE h;
ACPI_BUFFER bif_buffer;
dev = context;
sc = device_get_softc(dev);
h = acpi_get_handle(dev);
bif_buffer.Pointer = NULL;
if (!acpi_cmbat_info_expired(&sc->bif_lastupdated)) {
return;
@ -251,16 +234,15 @@ acpi_cmbat_get_bif(void *context)
}
sc->bif_updating = 1;
untimeout(acpi_cmbat_timeout, (caddr_t)dev, sc->cmbat_timeout);
if ((as = acpi_EvaluateIntoBuffer(h, "_BIF", NULL, &sc->bif_buffer)) != AE_OK) {
bif_buffer.Length = ACPI_ALLOCATE_BUFFER;
if (ACPI_FAILURE(as = AcpiEvaluateObject(h, "_BIF", NULL, &bif_buffer))) {
ACPI_VPRINT(dev, acpi_device_get_parent_softc(dev),
"error fetching current battery info -- %s\n",
AcpiFormatException(as));
goto end;
}
res = (ACPI_OBJECT *)sc->bif_buffer.Pointer;
res = (ACPI_OBJECT *)bif_buffer.Pointer;
if ((res->Type != ACPI_TYPE_PACKAGE) || (res->Package.Count != 13)) {
ACPI_VPRINT(dev, acpi_device_get_parent_softc(dev),
@ -283,8 +265,9 @@ acpi_cmbat_get_bif(void *context)
PKG_GETSTR(res, tmp, 12, sc->bif.oeminfo, ACPI_CMBAT_MAXSTRLEN, end);
acpi_cmbat_info_updated(&sc->bif_lastupdated);
end:
if (bif_buffer.Pointer != NULL)
AcpiOsFree(bif_buffer.Pointer);
sc->bif_updating = 0;
sc->cmbat_timeout = timeout(acpi_cmbat_timeout, dev, CMBAT_POLLRATE);
}
static void
@ -343,8 +326,6 @@ acpi_cmbat_attach(device_t dev)
AcpiInstallNotifyHandler(handle, ACPI_DEVICE_NOTIFY,
acpi_cmbat_notify_handler, dev);
bzero(&sc->bif_buffer, sizeof(sc->bif_buffer));
bzero(&sc->bst_buffer, sizeof(sc->bst_buffer));
sc->bif_updating = sc->bst_updating = 0;
sc->dev = dev;